package ihm;


import java.awt.*;
import java.awt.geom.*;
 
import javax.swing.*;
 
import org.jgraph.*;
import org.jgraph.graph.*;
//import org.jgraph.pad.actions.GraphLayout;
 
import org.jgrapht.*;
import org.jgrapht.ext.*;
import org.jgrapht.graph.*;
 
// resolve ambiguity
import org.jgrapht.graph.DefaultEdge;
 
 
/**
 * A demo applet that shows how to use JGraph to visualize JGraphT graphs.
 *
 * @author Barak Naveh
 * @since Aug 3, 2003
 */
public class JGraphAdapterDemo
    extends JApplet
    
{
    //~ Static fields/initializers ---------------------------------------------
 
    private static final long serialVersionUID = 3256444702936019250L;
    private static final Color DEFAULT_BG_COLOR = Color.decode("#FAFBFF");
    private static final Dimension DEFAULT_SIZE = new Dimension(530, 320);
 
    //~ Instance fields --------------------------------------------------------
 
    //
    private JGraphModelAdapter<String, DefaultEdge> jgAdapter;
 
    //~ Methods ----------------------------------------------------------------
 
    /**
     * An alternative starting point for this demo, to also allow running this
     * applet as an application.
     *
     * @param args ignored.
     */
   /* public JGraphAdapterDemo()
    {
        JGraphAdapterDemo applet = new JGraphAdapterDemo();
        applet.init();
 
        JFrame frame = new JFrame();
        frame.getContentPane().add(applet);
        frame.setTitle("JGraphT Adapter to JGraph Demo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }*/
    
     public JGraphAdapterDemo()
    {
    }
    
 
    /**
     * {@inheritDoc}
     */
    public void init()
    {
        // create a JGraphT graph
        ListenableGraph<String, DefaultEdge> g =
            new ListenableUndirectedGraph<String, DefaultEdge>(
                DefaultEdge.class);
 
        // create a visualization using JGraph, via an adapter
        jgAdapter = new JGraphModelAdapter<String, DefaultEdge>(g);
 
        JGraph jgraph = new JGraph(jgAdapter);
 
        adjustDisplaySettings(jgraph);
        getContentPane().add(jgraph);
        resize(new Dimension(800, 600));
 
        String v1 = "v1";
        String v2 = "v2";
        String v3 = "v3";
        String v4 = "v4";
 
        // add some sample data (graph manipulated via JGraphT)
        g.addVertex(v1);
        g.addVertex(v2);
        g.addVertex(v3);
        g.addVertex(v4);
 
        g.addEdge(v1, v2);
        g.addEdge(v2, v3);
        g.addEdge(v3, v1);
        g.addEdge(v4, v3);

 
        // position vertices nicely within JGraph component
        positionVertexAt(v1, 130, 40);
        positionVertexAt(v2, 60, 200);
        positionVertexAt(v3, 310, 230);
        positionVertexAt(v4, 380, 70);
 
        // that's all there is to it!...
    }
 
    private void adjustDisplaySettings(JGraph jg)
    {
        jg.setPreferredSize(DEFAULT_SIZE);
        
        Color c = DEFAULT_BG_COLOR;
        String colorStr = null;
 
        try {
            colorStr = getParameter("bgcolor");
        } catch (Exception e) {
        }
 
        if (colorStr != null) {
            c = Color.decode(colorStr);
        }
 
        jg.setBackground(c);
    }
 
    @SuppressWarnings("unchecked") // FIXME hb 28-nov-05: See FIXME below
    private void positionVertexAt(Object vertex, int x, int y)
    {
        
        DefaultGraphCell cell = jgAdapter.getVertexCell(vertex);
        AttributeMap attr = cell.getAttributes();
        
        Rectangle2D bounds = GraphConstants.getBounds(attr);
       
       Rectangle2D newBounds =
            new Rectangle2D.Double(
                x,
                y,
                bounds.getWidth()-70,
                bounds.getHeight()-10);
 
        GraphConstants.setBounds(attr, newBounds);
        GraphConstants.setBackground(attr, Color.BLUE);
 
       // EllipseCell c = new EllipseCell(vertex);
        
        // TODO: Clean up generics once JGraph goes generic
        AttributeMap cellAttr = new AttributeMap();
        cellAttr.put(cell, attr);
        AttributeMap map = new AttributeMap();
        jgAdapter.edit(map, null, null, null);
    }
}
    